https://codesearch.debian.net/search?q=[^_]recvmmsg\%28[^\%29]&perpkg=1&page=1 (...

		caf on Oct 5, 2016 \| parent \| context \| favorite \| on: Linux Kernel Use-After-Free Remote Code Execution ... https://codesearch.debian.net/search?q=[^_]recvmmsg\%28[^\%2... (Many of the results are for code like language runtimes and debugging tools that don't actually use recvmmsg() themselves)

Ouch, it's in chromium though.